i am 15 n around about the 21st of november i took the monin after pill and then came on my period around about the usuall time every month and i wud be on for about 7 days. but in february i only came on for about 4 days and was a week early and my belly feels really bloated. is there any way i could be pregnant given the fact that i have been regular every month apart from the last one? my boobs do feel like they are getting bigger but i dont know if they are just growin?

It doesn't sound likely at all from what you've said, but if there's been sex in the last 9 months, pregnancy is always a possibility. So go and take a pregnancy test at the first opportunity to put your mind at rest.

These mountains that you are carrying, you were only supposed to climb.

It sounds very unlikely, and your boobs getting bigger sounds like it is just because of growing up. Given your age, your periods are bound to be all over the place - even with the pill. I still get irregular ones from time to time also. Worrying can make you miss periods and also mess them up more, and even give your body symptoms that aren't really there (If that makes sense?)